Magnetic resonance study of p-Type 3C SiC microparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00539391" target="_blank" >RIV/68378271:_____/20:00539391 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/pssb.202000306" target="_blank" >https://doi.org/10.1002/pssb.202000306</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssb.202000306" target="_blank" >10.1002/pssb.202000306</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic resonance study of p-Type 3C SiC microparticles

Popis výsledku v původním jazyce

The silicon carbide (SiC) 3C polytype microparticles with p-type conductivity are investigated by X-band electron paramagnetic resonance (EPR) technique in a wide temperature interval. Morphological and Raman studies show that the mean particle diameter is 8 μm, and the SiC polytype is purely 3C. At T ¼ 10 K,the EPR spectrum of the shallow boron acceptor substituting cubic site (BK), with C3V symmetry and anisotropic g- and A-tensors resulting from static Jahn–Teller effect, is observed. At T >30 K, a continuous transition from static to dynamic Jahn–Teller effect for BK is detected. The temperature-dependent BK principal gvalues are explained by the transitions between the ground and excited vibronic states of BK. At T ¼ 130–150 K, the BK center is characterized by Td symmetry and isotropic g- and A-tensors. At T ¼ 60–190 K, an additional single EPR Lorentzian line with short spin relaxation times and isotropic g-value close to BK average gvalue is observed.

Název v anglickém jazyce

Magnetic resonance study of p-Type 3C SiC microparticles

Popis výsledku anglicky

The silicon carbide (SiC) 3C polytype microparticles with p-type conductivity are investigated by X-band electron paramagnetic resonance (EPR) technique in a wide temperature interval. Morphological and Raman studies show that the mean particle diameter is 8 μm, and the SiC polytype is purely 3C. At T ¼ 10 K,the EPR spectrum of the shallow boron acceptor substituting cubic site (BK), with C3V symmetry and anisotropic g- and A-tensors resulting from static Jahn–Teller effect, is observed. At T >30 K, a continuous transition from static to dynamic Jahn–Teller effect for BK is detected. The temperature-dependent BK principal gvalues are explained by the transitions between the ground and excited vibronic states of BK. At T ¼ 130–150 K, the BK center is characterized by Td symmetry and isotropic g- and A-tensors. At T ¼ 60–190 K, an additional single EPR Lorentzian line with short spin relaxation times and isotropic g-value close to BK average gvalue is observed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EF16_013%2F0001406" target="_blank" >EF16_013/0001406: Středisko analýzy funkčních materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physica Status Solidi B-Basic Solid State Physics

ISSN

0370-1972

e-ISSN

—

Svazek periodika

257

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

000560339300001

EID výsledku v databázi Scopus

2-s2.0-85089495186